railway UPMRC SCTO 2024 Mock Test Quantitative Aptitude Average

The average age of students is A and the average age of teachers is B. The number of students is 45 times the number of teachers. What is the average age of students and teachers together?

1
(45A + 8B)/7
2
(45A + B)/46
3
(45A + B)/8
4
(45A + 4B)/23
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